<template>
 <el-container class="home-container">
  <el-header>
      <div>
          <img src="../assets/03.jpg" alt="" class="pic">
          <span>电商后台管理系统</span>
      </div>
      <el-button type="info" @click="logout">退出</el-button>
    </el-header>
  <el-container>
    <el-aside :width="isCollapse? '64px' : '200px' ">
        <div class="toggle-button" @click="toggleCollapse">|||</div>
        <el-menu
      background-color="#333744"
      text-color="#fff"
      active-text-color="#409EFF" :collapse='isCollapse' :collapse-transition="false" :router="true" :default-active="activePath" unique-opened>
      <!-- 一级菜单 -->
      <el-submenu :index="item.id + '' " v-for="item in menulist" :key="item.id">
          <!-- 一级菜单的模板区域 -->
        <template slot="title">
            <!-- 图标 -->
          <i :class="iconsObj[item.id]"></i>
          <!-- 文本 -->
          <span>{{item.authName}}</span>
        </template>
        <!-- 二级菜单 -->
        <el-menu-item :index=" '/' + subItem.path " v-for="subItem in item.children" :key="subItem.id" @click="saveNavState('/' + subItem.path )">
            <!-- 二级菜单的模板区域 -->
        <template slot="title">
            <!-- 图标 -->
          <i class="el-icon-menu"></i>
          <!-- 文本 -->
          <span>{{subItem.authName}}</span>
        </template>
        </el-menu-item>
      </el-submenu>
      
    </el-menu>
    </el-aside>
    <el-main>
        <router-view></router-view>
    </el-main>
  </el-container>
</el-container>
</template>

<script>
export default {
    data(){
        return {
            menulist:[],
            iconsObj:{
                '125':'iconfont icon-users',
                '103':'iconfont icon-tijikongjian',
                '101':'iconfont icon-shangpin',
                '102':'iconfont icon-danju',
                '145':'iconfont icon-baobiao'
            },
            isCollapse:false,
            activePath:''
        }
    },
    created(){
        this.getMenuList();
        this.activePath = window.sessionStorage.getItem('activePath')
    },
    methods:{
        logout(){
            window.sessionStorage.clear();
            this.$router.push('/login')
        },
        async getMenuList(){
            const {data:res} = await this.$http.get("menus")
            if(res.meta.status !== 200) return this.$message.error(res.meta.msg)
            this.menulist = res.data
        },
        // 点击按钮，折叠菜单
        toggleCollapse(){
            this.isCollapse = ! this.isCollapse
        },
        saveNavState(activePath){
            window.sessionStorage.setItem('activePath',activePath)
            this.activePath = activePath
        }
    }
}
</script>

<style lang='less' scoped>
.home-container{
    height: 100%;
}
.pic{
    height: 160px;
    width: 200px;
}
.el-header{
    height: 80px!important;
    background-color: #373D41;
    display: flex;
    justify-content: space-between;
    padding-left: 0;
    align-items: center;
    overflow: hidden;
    color: #fff;
    font-size: 20px;
}
.el-header div{
    display: flex;
    align-items: center;
}
.el-aside{
    background-color: #333744;
    .el-menu{
        border-right: none;
    }
}
.el-main{
    background-color: #eaedf1;
}
.iconfont{
    margin-right: 10px;
}
.toggle-button{
    background-color: #4A5064;
    font-size: 10px;
    color: #fff;
    line-height: 24px;
    letter-spacing: 0.2em;
    cursor: pointer;
    text-align: center;
    user-select: none;
}
</style>